Download One Piece Episodes One Piece is a Japanese shÅnen manga series written and illustrated by Eiichiro Oda. It has been serialized in Weekly ShÅnen Jump since August 4, 1997. One Piece follows the adventures of Monkey D. Luffy, a 17-year-old boy who gains elastic abilities after inadvertently eating a supernatural fruit, and his diverse crew of pirates, named the Straw Hat Pirates. Luffy explores the ocean in search of the world's ultimate treasure known as the One Piece and to become the next Pirate King. On his journey, Luffy battles a wide variety of villains and makes several friends. Watch One Piece Episodes Online